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H12-311_V3.0 Exam Dumps - HCIA-WLAN V3.0

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Question # 41

WIDS Attack detection contains ().

(Select 3 Answers)

A.

Flood Attack detection

B.

Weak IV Attack detection

C.

Spoof Attack detection

D.

Microwave interference detection

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Question # 42

Which of the following 802.11 interframe spaces is the longest?

A.

SIFS

B.

PIFS

C.

DIFS

D.

IFS

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Question # 43

An engineer takes an AP to a shopping mall for onsite WLAN surveying, with only a simple building map and no known obstacles. During onsite signal attenuation test, the AP works in ___ mode.

A.

Fat AP

B.

Survey Mode

C.

Fit AP

D.

Monitor Mode

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Question # 44

802.11 In the frame, Address Which address bit represents the address of the receiving end of the frame ()?

A.

Address 1

B.

Address 2

C.

Address 3

D.

Address 4

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Question # 45

IEEE It is the standards organization responsible for the use of wireless frequencies in the United States.

A.

True

B.

False

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Question # 46

AP able to pass POE The switch performs power supply and data transmission.

A.

True

B.

False

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Question # 47

Which of the following statements about Layer 2 and Layer 3 roaming are true?

A.

Layer 3 roaming indicates that STAs roam between different subnets.

B.

Layer 2 roaming indicates that STAs roam within the same subnet.

C.

Layer 2 roaming can be determined as long as the VLAN IDs before and after roaming are the same.

D.

After Layer 3 roaming is performed, the VLAN IDs in the service sets of APs must be the same.

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Question # 48

Among the following options, which factors will cause users to be unable to search for wireless network signals ()? (Select 2 Answers)

A.

AP Configured 5G Priority, leading to 2.4G Wireless client cannot find the signal

B.

The user's wireless network card is not enabled or the hardware switch of the wireless network card is not turned on

C.

The wireless controller is equipped with user isolation function

D.

The user's wireless network card driver is abnormal

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